Photosynthesis & Respiration - Plainview photosynthesis cellular respiration fermentation energy source

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  • Photosynthesis & Cellular

    Respiration

    http://mrescience.com/i

    mages/life/chap1_2/Ph

    otosyn.swf://

    http://mrescience.com/images/life/chap1_2/Photosyn.swf

  • Photosynthesis

    Photosynthesis is a chemical

    reaction.

     Plants use light to make their

    own food.

  • Where does photosynthesis

    occur? • Photosynthesis occurs in the

    leaves of a plant.

  • Photosynthesis takes place in the cell

    part known as the CHLOROPLAST

  • What is needed for

    photosynthesis to

    occur?

    • Light is needed for photosynthesis to

    occur.

    • The plant’s chloroplasts use the light

    to make a sugar called glucose.

  • Why do plants need

    glucose?

    • Glucose is the food for the plant. It

    gives the plant energy to grow.

  • • Plants make enough glucose to be

    used during the night and on

    cloudy days when they don’t get

    sunlight.

    • The extra glucose is stored in the

    plant’s leaves and other parts as

    starch.

  • What happens during

    photosynthesis?

  • Six molecules of carbon dioxide react with

    six molecules of water to form 1 molecule

    of glucose and six molecules of oxygen.

  • Photosynthesis is a chemical

    reaction.

    Chemical reactions can be

    shown in the form of a chemical

    equation.

  • EQUATION FOR

    PHOTOSYNTHESIS

    6CO2 + ENERGY C6H12O6 + 6O2

    CARBON

    DIOXIDE

    WATER

    GLUCOSE

    OXYGEN

    6H2O +

  • Name the process performed by the

    elodea plant..

    Identify the gas being produced by

    the elodea plant.__________

    Predict what would happen to the

    amount of gas produced if the light

    was moved further AWAY from the

    plant.

    Explain your prediction.

  • Describe Photosynthesis

  • • Changes light to food.

    • Glucose is sugar.

    • Plants need light, carbon

    dioxide and water.

    Photosynthesis

  • • The green pigment chlorophyll,

    which is in the chloroplasts

    captures light energy.

    • The light provides energy

    needed to change molecules of

    carbon dioxide & water into the

    sugar glucose.

  • Why is this important to

    us?

  • How does photosynthesis

    help us?

    • During the process of

    photosynthesis, oxygen is

    produced. The oxygen released is

    necessary for all living things.

  • Why is this important to us?

    • We cannot make our own food

    • Glucose= energy, we must get our

    food from plants.

    • Plants are the first step in the food

    chain.

  • What is Cellular Respiration?

  • What is Cellular Respiration?

    The chemical breakdown of

    glucose molecules to release

    stored chemical energy.

  • Takes place in the

    mitochondria of all living

    things.

  • • Release of energy from glucose using

    oxygen.

    • Takes place in the mitochondria.

    AEROBIC RESPIRATION

  • What is the chemical equation

    for cellular respiration?

  • EQUATION FOR

    RESPIRATION

    C6H12O6 +

    GLUCOSE +

    6O2

    OXYGEN

    6CO2 +

    CARBON

    DIOXIDE

    6H2O +

    USABLE

    ENERGY

    + WATER +

    ATP

  • Photosynthesis & Cellular

    Respiration

  • Photosynthesis and Respiration are opposite equations.

    Light + CO2 + H2O 

    C6H12O6 + O2

    C6H12O6 + O2 

    ATP + CO2 +

    H2O

  • Photosynthesis

    • Turns _______ energy into _________

    energy

    Respiration

    • Turns _________ energy into _______ energy

    Light Chemical

    Chemical usable

  • ENERGY PROCESSES

    PHOTOSYNTHESIS CELLULAR

    RESPIRATION

    FERMENTATION

    ENERGY

    SOURCE

    LIGHT GLUCOSE GLUCOSE

    CELL PART CHLOROPLAST MITOCHONDRIA CYTOPLASM

    REACTANTS WATER,

    CARBON

    DIOXIDE

    GLUCOSE,

    OXYGEN

    GLUCOSE

    PRODUCTS GLUCOSE,

    OXYGEN

    WATER,

    CARBON

    DIOXIDE,

    ATP

    LACTIC ACID,

    ALCOHOL,

    CARBON

    DIOXIDE,

    ENERGY

  • How do cells produce

    energy without oxygen?

  • Anaerobic Respiration

    Yeast Some Bacteria

    Tired muscle cells

    Releases energy without the

    use of oxygen

  • Anaerobic Respiration

    • Tired muscle cells

    •Produce lactic acid

    •Which cause muscle

    cramps

  • Anaerobic Respiration

    (Fermentation)

    Yeast Some Bacteria

    Produce the wastes

    Carbon dioxide and

    Alcohol

    And the useful product

    ATP ( energy)

  • FERMENTATION

  • Overview of photosynthesis and respiration

    PHOTOSYNTHESIS CELL ACTIVITIES

    RESPIRATION

    SUN

    RADIANT

    ENERGY

    GLUCOSE ATP(ENERGY)

  • Learn more about

    photosynthesis at:

    http://www.ftexploring.com/me/photosyn1.html

    http://www.ftexploring.com/me/photosyn1.html

  • Read how photosynthesis &

    respiration are related:

    http://www.usoe.k12.ut.us/curr/science/scib

    er00/8th/energy/sciber/photosyn.htm

    http://www.usoe.k12.ut.us/curr/science/sciber00/8th/energy/sciber/photosyn.htm